Matx - Subscribe form

<div class="mdl-textfield mdl-js-textfield news-letter-input">
    <input class="mdl-textfield__input" type="text" id="nl_email" name="EMAIL" />
    <label class="mdl-textfield__label" for="nl_email">YOUR EMAIL</label>
</div>
<button type="submit" class="mdl-button ripple-black mdl-js-button mdl-button--raised mdl-js-ripple-effect btn-default btn-white wow fadeInRight" data-wow-duration="1.2s">Subscribe</button>